SC250N Equivalent & Substitute Parts

Part Overview

The SC250N is an internally driven piezo buzzer manufactured by Mallory Sonalert Products Inc., designed for panel mount applications with screw terminal and quick connect tab termination. This component operates across a wide voltage range of 60–250V AC/DC, producing a single tone at 2.9kHz with 80dB sound pressure level at 60V measured at 61cm. The part is currently active in production with cUL approval and maintains an inventory of 1073 units in stock.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design revisions require updated compliance certifications, or when procurement optimization is required across manufacturing batches.

Substiute Parts

SC250N

Mallory Sonalert Products Inc.In Stock: 1139SC250N Datasheet

Current PartRFQ

SC250NR

Mallory Sonalert Products Inc.In Stock: 971SC250NR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SC250NR qualifies as a direct substitute for the SC250N based on identical electrical and mechanical parameters. Both parts share the same series designation (SC), piezo technology, internally driven indicator circuitry, voltage range (60–250V AC/DC), frequency (2.9kHz), sound pressure level (80dB @ 60V, 61cm), current supply specification (5–18mA), operating temperature range (–30°C to 65°C), and physical dimensions (1.687" diameter, 1.399" maximum seated height).

The substitution is valid across all critical parameters that determine functional compatibility: input type, mounting configuration, termination style, and port location. The primary distinction between these parts lies in compliance certifications and RoHS status, not in electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The SC250NR is a direct functional equivalent to the SC250N. Selection between these parts should be based on compliance requirements and regulatory obligations specific to the application.

The SC250N carries cUL approval and is RoHS non-compliant. The SC250NR carries both cUL and UL approval and is ROHS3 compliant. Applications requiring RoHS3 compliance or dual cUL/UL certification should specify the SC250NR. Applications with no RoHS compliance requirement and existing cUL approval may continue with the SC250N.

Both parts are manufactured by the same supplier, share identical electrical performance characteristics, and are mechanically interchangeable in panel mount configurations with screw terminal and quick connect tab termination.

Frequently Asked Questions (FAQ)

Q: Can SC250NR replace SC250N in existing designs? A: Yes. The SC250NR is electrically and mechanically identical to the SC250N. Both operate at 60–250V AC/DC, produce 2.9kHz single tone output at 80dB @ 60V (61cm), and use identical panel mount screw terminal termination with 0.250" quick connect tabs.

Q: What is the difference between SC250N and SC250NR? A: The primary differences are compliance certifications and RoHS status. SC250N holds cUL approval and is RoHS non-compliant. SC250NR holds cUL and UL approval and is ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are there any dimensional differences between these parts? A: No. Both parts have identical dimensions: 1.687" diameter (42.85mm) and 1.399" maximum seated height (35.54mm). Panel cutout and mounting hole specifications are identical.

Q: Which part should I specify for new designs? A: Specify SC250NR for new designs if RoHS3 compliance or UL certification is required. Both parts are currently active in production. SC250NR provides broader regulatory coverage with dual cUL/UL approval.

Q: Are the termination styles identical? A: Yes. Both SC250N and SC250NR use screw terminal and quick connect tab termination with 0.250" (6.35mm) tab size. Port location is top-mounted on both parts.